We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitlePerinatal outcome of singletons and twins after assisted conception: a systematic review of controlled studies.AuthorsHelmerhorst, Frans M; Perquin, Denise A M; Donker, Diane; Keirse, Marc J N CAbstractTo compare the perinatal outcome of singleton and twin pregnancies between natural and assisted conceptions.PublicationBMJ (Clinical research ed.), 2004, Vol 328, Issue 7434, p261ISSN1756-1833Publication typeJournal ArticleDOI10.1136/bmj.37957.560278.EE